Add hostname provisioning

tasks/network.yml

@@ -3,11 +3,25 @@
 # using `wg set wg0 peer izHzmRwh2yzICps6pFI2Bg3TnmTD66/8uH4loJpkuD4= endpoint <NEW-IP>:<PORT>`
 # for example.
 
+- name: Set hostname
+  become: true
+  ansible.builtin.hostname:
+    name: '{{ hostname }}'
+    use: systemd
+
+- name: Copy hosts file
+  become: true
+  ansible.builtin.template:
+    src: templates/hosts.j2
+    dest: /etc/hosts
+    mode: '0644'
+    owner: root
+
 - name: Copy firewall template
   become: true
   ansible.builtin.template:
     src: "{{ lookup('ansible.builtin.first_found', paths) }}"
-    dest: '/etc/nftables.conf'
+    dest: /etc/nftables.conf
     owner: root
     group: root
     mode: '0600'